Wrench



June 16, 1925. 1,542,228

J. D. FRANKLIN WRENCH Filed March 20, 1923 2 Sheets-Sheet 1 F-ng-l JJlF vanklifi.

Calcium June I6, 1925. I 1,542,228

J. D. FRANKLIN wanucn Filed March 20, 1923 2 Sheets-Sheet 2 maamtot J13- Franklin Patented June 16, 1925 PATENT "QFFIQEL:

WRENCH.

T ball it my Camm Be it known th "1; JAMES D. Fhhmillm fi 1 i h iii the ,U i d. fihiihh. esi in h Chatigzinqoggi, "1 the empty 9f Hamilton and Sta tb of Tenqess g h as inventedqtfgain ii W nd ish il i iii i hffih s i Wl'Q l qf which the follqwing is speg ficaqony like and fur thp r mqg' in cbn ectipn with the mining of a pip e, H

' ie-Qt o t in tion is" to PI ZQVi dQ q w renqh pi the g xb ove meh' i -nd h ih wh ii ,5 1? a 90 stlitl tigi n "alto ehqb lje the s ine to be adi si sah d si h e k ph i' hw hw thh sa wf- A h T1 um 1 s h P-Q i elevahpn i? m mi ur ,2 s a hh. ail. ih jiqii 9f ,ih h ii Elgi g 3 1\$1L s ectlpna VlQW taken on hne .s of Fig.1 q nd l oking in the direction Figur 4: t Shh q a i w w en, n iihe +4hfEiQ- Figure Q 5 ifich h of w Qfl l hi9ILW h adapted fpr use in cbh ctiqn with the turning of pipes.

Fi u e 7 fih sec ie 0 l i g- -h' ,7 i. Q

In the dlpzywings wherein fo r th epurpqse of uil u tna t m s ShQ- J hh Pi e i e h qdiment o -my inventi n, i e numeral 1 oi "the abg ve d h i i fi i i v ti lhi ii Applicafiqn filled March 20, 1923. Serial No. 626,326.

.l s i ahes .tih'e, shahk hi my imp e wre c hets anh he ngm iiide at him par en ith t e st tisiiizwy i w 2-. 1? e,$.

aw 5 which is s lidably Carried by the shank Th1: s lable jaw Q s p uvi ed w h w ges s ed port-ion 6 adja cenp the lqwer inner 'endan a p n 7 itnd l r e sely. acr hh jaw hwi h n the cess 6- he Pu PQ flq th s, e es ha t e trans rs Pin 7 is i 1 Q de amea sei i i pi ta ly uppqr T ng e ppe nd'qi h rack-W 18 n the Jaw-5 m m irly shown in. F 10f he dmifv igis Th i pli h is prqv de w h th t a sws y hnd iig eth in t ou eri a d andih ra k bar 5 is flf iii'ptfid to. ex nd ,dqwriw rdly rQm the ivoi i ly mo nt t S an lma a point adja nt thenhfirli fii hie P t on i ei h e h k dh nated hy numeral 19 'gngl a lly. bra KetAlO rcqm- 12i$ hPh hQ lik plat a ll iid P hY y and h 1 hi r mqiihf d on t e P YQfi 3 smih ir ht hnd m v i i s of he 5.113 11 ilin eiT edi W th en h- A j cent h 14 finds hi the pla s 11 @91 and QX Qnding t 'hnwe sely -h etw h is the dog or ca hh 4 he z wh 0 hdoglv i. is

a ap e 9 eng igdth .t e h ,9 Pm id d in he. ra k ar Sh dih l WeI en qr fr end piihe; 112x91; i5 lda ptgcltq pass ih t e, b ac et 1 he w hn he pl 11 a d 2 l hhr nd in .the. m man Tmp clearly sh in Figs. 1 and 3 of thg; draw- ,LHTl mi im l y eep the r wh b r 8 i e hhi iit with t i h 14; I PlQV dQ a fl spring 1 5, the lower 1191 of which igfsecured o .shank l i a .6 in the d aw ngs, t i pp r 11 t e sp ng 5 h g ad p dA-w. ra a a ns the inna s e fa of the ack bar 8 s mm l a ly shqwh n th i' Y gs- Ale hr 17 has t piph i nd r i ed to Pr v d fihQll d a i 1and. 9. r

1 fims i i j and e p rpo h 1E his nst u Figure; 6 1& slgglgya tion of the moditi n is $0, i h i11PPeiL hd Qiflw lay 1w be sposed .bQUZ -BQI hQ ute reqend t h; P a es 311C112. qT-h pl te 1 and 12 a e iheir ,Qi er ig sad jpbe t9 s on t Shoulder 18 nd lp o qdin the 1 1211 q ii Oi hQ fiv mm asuita lel P or hh is adhpisisl $0 paSS hmugh hs p ar es and 12 and the upper reduced portion of the handle 17 whereby the lever 17 is held in a locked position with respect to the bracket and furthermore will enable the bracket 10 to be operated upon movement of the lever 1? as will be more fully; described hereinafter.

The shank 1 is provided with a threaded aperture which extends transversely from the inner side face to the outer side face of the shank and is adapted to receive therein the threaded adjusting screw 22. The purpose of this adjusting screw 22 is to enable the screw to be turned so that the free end of the screw will extend beyond the outer side face of the shank 1 for engagement with the inner side face of the lever 17 whereby the inward movement of the lever is limited.

Vith the parts adjusted as shown in the full lines in Fig. 1 of the drawings, the sliding jaw 5 is moved upon the shank to cooperate with the stationary jaw 2 and after the jaw 5 has been adjusted to the proper size and position by moving the rack bar 8 away from engagement with the dog 14 and against the tension of the spring 15, the lever 17 is then moved inwardly to the dotted lines in theposition as shown in Fig. 1 of the drawings whereby the dog 14 will be caused to engage the tooth in the rack bar 8 adjacent the dog whereby the sliding jaw 5 will be caused to bind against the nut or ob ect held between the stationary aw and the sliding jaw whereby the sliding jaw is brought into a locked position and by grasping the lever 17 with the shank 1 the jaws are held in locked engagement with the object and the wrench is then in position tobe operated. To release the wrench from engagement with the object when the same has been turned, it is always necessary to move the rack bar 8 inwardly against the tension of the spring and out of engagement with the dog 14 whereby the sliding jaw 5 may be freely moved along the shank 1 and thereby released from engagement with the object with which it was locked.

In Figs. 5 and 6 of the drawings, I have shown a modification of jaw construction whereby the stationary jaw 2 and the slidable jaw 5 are adapted to receive the supplemental jaws 23 and 24 respectively. The purpose of these jaws is to provide a means whereby the wrench may be used in connec tion with turning pipes which could not be done with the flat inner faces 3 and 4 0f the jaws 2 and 5 respectively. The jaw 23 is provided with a cutout portion 25 which is adapted to enable the jaw to fit over the shank 1 and is also provided with the socket portion in the upper face thereof as designated by the numeral 26 for the purpose of permitting thesame to enclose the stationary jaw 2 as more clearly shown in Fig. 6 of the drawings. The jaw 23 is furthermore provided with a curved inner face and which is provided with the teeth or serrations 27.

To further hold the jaw in position upon the stationary jaw 2, I provide the locking screw 28. This locking screw 28 is adapted The other supplemental jaw 24 is pro vided with a similar cutout portion 29 for the purpose of permitting the same to fit around the shank 1 and is also provided with the socket 30 whereby the same may enclose the sliding jaw 5. It will be noted. from Fig. 6 of the drawings that the front face of the sliding jaw 5 is provided with a longitudinally extending groove or slot 31 and adapted to fit in this groove or slot 31 is the longitudinally extending tongue or rib 32 provided on the front face of the jaw 24. The inner face of the jaw 24 is provided with the serrations or teeth 33 which coop erate with the serrations or teeth 27 provided in the inner face of. the jaw 23.

In use, when it is desired to use the wrench in connection with the turning of a pipe or the like, the supplemental jaws 23 and 24 are placed in their proper position upon the stationary jaw 2 and slidablejaw.5 respectively and the pipe is then placed between the serrated faces of the jaws 23 and 24 and the rack bar 8 is then moved into proper position whereby the jaw 24 which is carried by the slidable jaw 5 is brought into engage ment with the pipe or other object disposed between the jaws 23 and 24 as heretofore described and by operating the lever 17 in the manner as hereinbefore setforth the jaw 24 will be caused to be brought into locking engagement with the pipe whereby the pipe is held in a locked position between the jaws and furthermore'enable the wrench to operate the pipe in the desired manner.

It will thus be seen from the foregoing description that a wrench has been provided wherein the same may be easily changed from an ordinary type of monkey wrench to a pipe wrench and does not require the use of several additional parts or the taking of considerable time in adjusting the relative parts to their proper positions. Furthermore, the simplicity and arrangement of parts on my improved wrench are such as to give the same the proper adjustments and will positively move the elements to be operated upon by the wrench in a locked position whereby the proper operation is insured.

From the foregoing description of the construction of my improved apparatus, it

will be seen that I have provided a simple,

inexpensive and efficient means for carrying out the objects of the invention, and while I have particularly described the elements best adapted to perform the functions hat I claim as new and desire to secure by Letters Patent is In a wrench of the class (:lescribed co1nprising a shank having a fixed jaw at its upper end a slidable jaw carried on said shank, said slidable jaw being provided with a socket in its lower face, a rack bar pivoted. at its upper end within the socket'of said slidable jaw and suspended from the latter adjacent one side edge of said shank, a bracket comprising a pair of parallel plates straddling said shank and pivoted thereto intermediate of its ends, a dog carried between the inner ends of the plates forming said bracket and adapted to engage the teeth of said rack bar, a lever reduced at its upper end and having said reduced end extended between and secured to the outer ends of the plates forming said bracket, the shoulders formed at the reduced end of said lever abutting the lower edges of the plates forming said bracket to provide a secure connection therebetween, a leaf spring secured at its one end to the sideedge of said shank V and bowed to contact with the side edge ofthe rack bar and normally retain the latter in engagement with said dog, said shank being provided with a threaded opening therein adjacent its lower end and a thumb V screw extendlng through said threaded opening and adapted to have its end contact with the inner side edge of said lever to-lii'nit' the inward movement of the latter, as and for the purposes described.

In testimony whereof I afiix my signature.

JAMES D'. FRANKLIN. 

